Machine-gun.



W. FK MOTTIN.

MACHINE GUN.

APPLmATmN man |\1AY4,1917.

Patented Jan. 7,1919.

2 SHEETS-SHEET I INVENTOR ATTOR N EY W. F. MOTTIN.

Patented Jan. 7, 1919. 2 SHEETS-SHEET z.

ATTOR N EY UNITED STATES PATENT OFFICE.

WILLIE F. MOTTIN, OF NOEL, MISSOURI.

MACHINE-GUN'.

Application filed May 4, 1917.

To all 'whom z't may concern.'

Be it known that I, WILLIE F. Mo'r'rIN, a citizen ofthe United States, residing at Noel, in the county of McDonald and State of Missouri, have invented certain new and useful Improvementsl in Machine-Guns, of which the following is a specification.

This invention relates to an improved machine gun and the principal object of the invention is to provide improved means for feeding the cartridges into the gun and to provide improved means for engaging the cartridges from the carrying strip and conveying them into the barrel of the gun and further to provide improved means for discharging the cartridges and removing the cartridges from the gun barrel and ejecting them from the gun.

Another object of the invention is to so construct the means for placing the cartridges in the barrel that. the discharging plunger may be carried thereby and moved into and out of an operative position by the same means serving to move the cartridge conveying means.

Another object of the invention is t0 so construct the cartridge engaging and conveying means that the cartridge will be seourely held in engagement therewith until moved out of engagement with the grasping hooks by an abutment plate passing through thebreech block.

This invention 1s illustrated in the accompanying drawings, wherein :-w

Figure l is a longitudinal vertical sectional view through the rear end portion of a machine gun provided with the improved construction.

Fig. 2 is a longitudinal transverse sectional view taken along the line 2-2 of Fig. 1.

Fig. 3 is a transverse sectional view taken along the line 3-3 of Fig. l.

Fig. 4 is a transverse sectional view taken along the line 4-4 of Fig. 1.

Fig. 5 is a plan view of the cartridge carrying belt or strip.

Fig. 6 is a view in elevation of the improved cartridge carrying belt or strip.

This machine gun is provided with a barrel 10 positioned in a jacket 11, the jacket being provided with passages 12 for cooling purposes, it being understood that if desired a suitable cooling fluid may be passed through these passages. This barrel 1() is positioned in front of a chamber or housing Specification of Letters Patent.

Patented Jan. 7, 1919.

Serial No. 166,387.

13 formed in two sections connected by the fasteners 14 as shown in Figs. 1 and 2. In

.the forward end portion of this chamber or fin'Fig. 1 for a purpose which will be hereinafter brought out. By having this chamber formed in two sections and connected by the fasteners 14, it may be taken apart easily for purposes of repair and cleaning.

Within this chamber there 'is provided a feeding roller 18 having a supporting shaft or axle 19 rotatably mounted bv having one end journaledas shown at 2O and by having its rear end portion passed through the bearing of bracket 21. This feeding roller is provided with teeth 22 fitting into the openings 23 formedin the cartridge carrying belt or tape 24 to feed the tape through the chamber with the side portions of the tape passing between the strips 25 forming the guide for the tape. This tape passing through openings 26 and 27 formed in the sides of the chamber and carries the cartridges 28, the cartridges being held to the tape by a second or auxiliary strip 29 formed of paper or other tea-rable material. This cartridge carrying belt or tape will be fed transversely through the chamber and as it moves across the same, the cartridges will be removed from the tape by means to be hereinafter described and the tape will then be fed out through the opposite side of the chamber.

In order to drive the roller 18 and operate the discharge means, to be hereinafter described, there isprovided a driving shaft 30 rotatably mounted in the chamber and extending transversely therein and beyond the side of the chamber to receive a turning crank, not shown. This driving shaft 30 carries a beveled ear 31 meshing with a beveled gear 32 rigid upon the rear end portion of the driven shaft or axle 19 and it will thus be seen that as this driving shaft 30 is rotated, the feeding roller 18 will be rotated to pass the tape or belt 24 through the'chamber. A crank shaft 33 is'rotatably mounted in the chamber as shown in Fig. 2 and carries a relatively small gear 34 meshing with a large gear 35 rigidupon the driving shaft 30 and through themedium of the ing a link extending therefrom and connected With the latch and discharging plunger', rotation of the crank shaft reciprocating the link to move the latch and discharging plunger into and out of an operative position, and reciprocate the breech block longitudinally in the chamber.

4L. Amachine gun comprising a body having a barrel and a chamber to the rear of said barrel, a breech block slidable in the chamber and provided with cartridge engaging means, means in the chamber for engaging a shell to disengagerthe shell from the breech block as the block moves rearwardly in the chamber after discharging of the cartridge in the barrel, means for feeding cartridges into the chamber in timed relation to the movement of the breech block, a latch movably connected With the breech block, a discharging plunger carried by the breech block7 and means engaging the latch and discharging plunger for moving the same into and out of an operative position as the breech block moves longitudinally in the chamber.

5. A machine gun comprising a body having a barrel and a chamber to the rear of said barrel, a breech block slidably mounted in the chamber, means for feeding cartridges through the chamber in timed relation to the movement of the breech block, cartridge engaging means carried by the breech block, a discharging plunger and a latch carried by the breech block, a crank shaft rotatably mounted in said chamber, and means extending from the crank shaft and connected with the discharging plunger and latch for moving the latch into and out of an operative position as the breech block moves.

6. A machine gun comprising a body including a barrel and a chamber to the rear of said barrel and communicating there- With, cartridge feeding means in said chamber, a breech block movable in the chamber in operative relation to the feeding means and provided With a latch and a discharging plunger, operating means mounted in the chamber and having connection .With the plunger and latch for imparting movement to the breech block and moving the latch and discharging plunger into and out of an operative position.

In testimony whereof I aiiix my signature in presence of two Witnesses.

WILLIE F. MOTTIN.

Witnesses:

A. W. KIstrLnR7 C. B. MORRIS.

Copies of this patent may be obtained for ve cents each, by addressing the commissioner of Patents, Washington, D. C. 

